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#82468 - 10/14/02 04:26 PM Re: photic sneeze reflex
wwh Offline
Carpal Tunnel

Registered: 01/18/01
Posts: 13858
I never heard of sneezing due to bright lights. I have come out of many theaters, and
do not remember ever hearing a sneeze. So I have learned something. I found a site
with quote from a small "peer-reviewed quarterly journal", from which I took a pertinent
quote:
"The mechanism of the bright light sneeze reflex seems to be an association of optic nerve
fibers and trigeminal nerve nucleus in the mid-brain. The trigeminal nerve's second division
supplies sensory fibers to the nasal mucosa. It is postulated that nerve impulses travelling
up the optic nerve will cause a sympathetic discharge down the trigeminal nerve fibers.
Another mechanism postulates that partial squinting of the eyes resulting from the
bright light causes squeezing of the lacrimal sac which results in tears running down the
nasolacrimal duct into the nasal cavity, causing stimulation ofthe nasal cavity and a sneeze. "


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#82469 - 10/14/02 04:28 PM achoo, achoo, achoo, achoo, achoo
of troy Offline
Carpal Tunnel

Registered: 10/17/00
Posts: 5400
Loc: rego park
am i the only one here who makes serial sneezes? i almost never sneeze a single time, but 3 to 5 to 7 sneezes in a row...sometimes immediately one after another, sometimes with a few seconds between the sneezes.

_________________________
my other obsession

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#82470 - 10/14/02 04:40 PM Re: achoo, achoo, achoo, achoo, achoo
AnnaStrophic Offline
Carpal Tunnel

Registered: 03/15/00
Posts: 6511
Loc: lower upstate New York
Helen, I don't enjoy multiple sneezes as often as I'd like, but I do know men envy them. <ahem>


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#82471 - 10/14/02 04:42 PM Re: Soundly Screwing Up Vision
WhitmanO'Neill Offline
Carpal Tunnel

Registered: 03/13/01
Posts: 4189
Loc: Rio Grande, Cape May County, N...
I'm glad I'm not the nitpicker here anymore

"Tell the big lie often enough and soon everyone will believe you"
--Goebbels




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#82472 - 10/14/02 04:58 PM Re: Soundly Screwing Up Vision
Wordwind Offline
Carpal Tunnel

Registered: 09/30/01
Posts: 6296
Loc: Piedmont Region of Virginia, U...
In reply to:

WW said that staring at the sun was a stupid thing to do if you wanted to screw up your
vision.


Oh, come on, Faldage. Give me a break here. I took it back, didn't I? Didn't I write way up there, even before Cap Ki's snap-on hoods for the Klan, that I shoulda written that staring at the sun is a stupid thing to do, and it will screw up your vision?

Is my originally poorly phrased phrase going to huant me to the end of my days here on AWAD? Am I to be forever pursued by men with snap-on hoods picking my nits, even after apologizing for 'em? Whaddaya want me to do? Go run into a wall or somefin?


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#82473 - 10/14/02 05:10 PM Re: achoo, achoo, achoo, achoo, achoo
Buffalo Shrdlu Offline
Carpal Tunnel

Registered: 06/24/02
Posts: 7210
Loc: Vermont
I knew a girl in college who was a repeat sneezer- 72 times at one count...crazy at a party...
for me, usually two or three at a sneezing.
bright lights don't do it for me.

_________________________
formerly known as etaoin...

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#82474 - 10/14/02 05:24 PM Re: Soundly Screwing Up Vision
AnnaStrophic Offline
Carpal Tunnel

Registered: 03/15/00
Posts: 6511
Loc: lower upstate New York
I know I'm biased here, WW, but it wasn't Faldage who brought this up again. <ahem>


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#82475 - 10/14/02 05:29 PM Re: achoo, achoo, achoo, achoo, achoo
wwh Offline
Carpal Tunnel

Registered: 01/18/01
Posts: 13858
Please forgive a switch to a slightly different photic reflex. A friend who owned a Piper Cub
aircraft took up a student, who attempted to land heading toward the setting sun. He
had an epileptic seizure, and only prompt administration of Bulgarian anaesthesia using the
fire extinguisher enabled my friend to regain control of the plane and land safely. The student
later told him that flickering lights such a sun through the propeller could cause him to have
a seizure. I had never heard of it, and was tempted to think it was nonsense. But I found out
that it is a recognized entity. Here's
a URL:http://www.epilepsy.org.uk/info/photofrm.html


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#82476 - 10/14/02 05:38 PM Re: Soundly Screwing Up Vision
Wordwind Offline
Carpal Tunnel

Registered: 09/30/01
Posts: 6296
Loc: Piedmont Region of Virginia, U...
In reply to:


I know I'm biased here, WW, but it wasn't Faldage who brought this up again. <ahem>


OK. I'm confused, but what's new? All I know is I haven't read this thread for a while, and this afternoon I decided to see what was going on...on the sneeze thread. I mean, how much can we really write about sneezing? This isn't exactly one of those threads that you have to read carefully three times a day to keep up with.

And what should I find here, on Oct. 14th, but Faldage still going at poor WW over what I'd said not very well, but then straightened out...you know?

I like what Sparteye said, however, about sneezing in bright lights because I know it took her a while to key it in.

...Why not?...


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#82477 - 10/14/02 06:12 PM Re: achoo, achoo, achoo, achoo, achoo
consuelo Offline
Carpal Tunnel

Registered: 06/11/01
Posts: 2636
Loc: Caribbean
When prompted by some allergic reaction, such as an abundance of dust, I will continue sneezing until I can get my hands on a wad of Kleenex. I think my personal record is somewhere in the twenties. Too much of a good thing eventually gets to be boring . The best sneeze I ever had in my life was this past spring. If only I knew exactly how I performed that chiropractic sneeze I'd do that one again and again and again......I felt wonderful for days after. *sigh*


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